Light weight bucket seats

Hello,
Stop me if I am wrong but I believe that back in the day Dodge set up their (67 onward) drag racing Hemi Darts with light weight bucket seats out of trucks.
Would anyone know if they are being made or are available somewhere? Sorry I couldn't find any pictures of them to add to this post.
I am thinking they would be good for one of my projects. Although going on my current research if they do exist they probably wont be cheap.
Thanks for any info you might have.
Regards,
Ron